baber/WOPTO huggingface dataset:
Patent GB-1029940-A (GB)
Title: Pulse synchronising apparatus
IPC: H04L5/22
Filed: 1963-05-30
Abstract: 1,029,940. Data transmission systems. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 30, 1963 [May 31, 1962], No. 21584/63. Heading H4P. In an apparatus in which each received signal bit is sampled during a period short compared with the bit length, transition from one bit to another causes a cyclic timer to reset to zero. The timer, which provides the sampling instant and has a cycle time approximately equal to one bit-duration, is brought into synchronism with the received data each time there is a transition in the data. The basic embodiment, Fig. 1, is shown as a link between a line 1 and a processing unit at 2. Data may pass in either direction. When signals are to be received from the line 1 Receive terminal 11 is energized. AND gate 4 therefore gives an output which enables gate 5a or 5b, dependent on the state of the bit just received. A cyclic counter 10, having variable capacity, normally counts to ten during each bit. At count 6 gate 5a or 5b pulses to trigger binary store which passes a binary signal to the processor. If no data transition has been detected by the time count ten has been reached, counter 10 resets to one via OR gate 21 and AND gate 31. When a transition is detected by the arrangement of delay 24 and EXCL. OR gate 25 counter 10 is reset to one whatever the state of the counter. Thus, although the counter may not be in precise synchronism with the received data it is brought to synchronism at each data transition. During a stop bit which is 40% longer than an ordinary bit the counter cycles once and then counts to four before resetting to one. The processor passes bits to line 1 by way of units 26, 27a, 27b and 28- similar to corresponding units in the reverse direction. However, when an extended stop signal is to be sent terminal 29 is energized, inhibiting the resetting of counter 10 via gate 22. Hence the counter counts to fourteen before resetting so that the stop bit has the correct length. The invention is applied to system for interchange of data among a number of lines. The system is described in detail, and comprises a main frame which scans 15 high-speed lines connected to telegraph transmitter receivers. By means of a multiplexing unit each highspeed line may be served by up to 31 low-speed lines. Control words are allotted to each lowspeed line both in the multiplexer and in the main frame. When the control words coincide during scanning, data is transferred.
Patent GB-617925-A (GB)
Title: Antenna for radiating circularly polarized waves
IPC: H01Q21/26
Filed: 1946-07-22
Abstract: 617,925. Aerials. FARNSWORTH TELEVISION & RADIO CORPORATION. July 22, 1946, No. 21819. Convention date, Oct. 3, 1945. [Class 40 (vii)] A directive aerial system comprises one or more half-wave dipole conductors formed into a circle about a common axis and one or more half-wave dipole conductors arranged along the said axis. In the arrangement shown in Fig. 1, a radiator 1, consisting of a folded half-wave dipole bent into a circle to form two peripherally incomplete conducting loops 3, 4, the open ends of which are connected together electrically by capacitance plates 5, 6, is arranged in a horizontal plane and along the vertical axis of the loops 3, 4, is positioned a vertical radiator 2 comprised of a coaxial transmission line, the outer conductor of which is folded back at 16 for a length #/4 and the inner conductor extended at 12 for a length #/4 to form a sleeve type aerial. The conductor 4 of radiator 1 is open at its mid-point to form a pair of terminals 7 through which energy is fed to or abstracted from the radiator via an impedance-matching box 8 and balanced shielded transmission line 21. The system described is arranged to radiate (or receive) a circularly. polarized wave (e.g. in television systems) by supplying the vertical radiator 2 with energy phase-shifted by 90. degrees with respect to the energy supplied to the horizontal radiator 1. This is effected by means of a phase-shifter 23 connected between the source 22 and the transmission line 15 feeding the vertical radiator. When the phase and amplitude of the waves radiated by the horizontal radiator are not exactly uniform in all horizontal directions, the wave radiated by the system as a whole may be elliptically polarized in certain horizontal directions and to overcome this an arrangement, Fig. 2 (not shown), is provided comprising three aerial systems, each similar to the arrangement of Fig. 1, stacked along a common vertical axis and each connected to a source of high-frequency energy through appropriate phaseshifters to' give the required 90 degrees phaseshift. for similar radiating elements of each system. In this arrangement, however, equalization for slight difference in phase or amplitude of the wave radiated by the horizontal radiators is effected by arranging the feed terminals of the latter radiators opposite to each other in a vertical plane passing through the common vertical axis of the system. An advantage claimed for transmission systems employing circularly polarized waves is that interference between the direct ray and a reflected ray may be eliminated by employing a receiver arranged to receive only circularly polarized waves having a predetermined sense of rotation, since the sense of rotation of a circularly polarized wave is reversed on reflection (from a horizontal or vertical reflecting surface).
Patent GB-1030319-A (GB)
Title: Improvements in or relating to brake assemblies
Inventor: HAYWOOD ERNEST CHARLES
IPC: F16D59/02
Filed: 1963-05-31
Abstract: 1,030,319. External shoe-drum brakes. BROOKHIRST IGRANIC Ltd. Feb. 26, 1964 [May 31, 1963], No. 21871/63. Headings F2E and F2S] In a brake assembly for a spring-applied electromagnetically released external shoe-drum brake, brake shoes 6 are adapted to be carried by brake levers 4, 5 pivotally mounted on a bush means 10 of resiliently compressible material such as a silicone rubber which is located on extensions 15 of the base 1. The brake is adapted to be applied by a spring arrangement 9 and released by energization of an electromagnet 2. The lever 5 is operably connected to the field member of the electromagnet by means of a tie rod 7 and the lever 4 is connected to the armature 3 of the electromagnet through an adjustment assembly 8. The electromagnet may be mounted in a similar resilient mounting to that used by the brake levers. The resilient mounting takes the form of resilient bush means 10 of silicone rubber located in circular holes in the members to be mounted and in the case of the brake levers 4, 5. The right-hand lever 5 is provided with flanged steel support bushes 11 which are received by the rubber bushes 10 and has an extended externally threaded portion on which two adjusting lock nuts 12 are screwed. A steel washer 13 is placed between the lock nuts 12 and the flange of the outer rubber bush 10. The mounting for the left-hand brake lever 4 is similar to that described above except that the holes of the flanged bushes 14 are provided with internal screw threads for co-operation with two side-by-side bolts 16 which pass through the bushes 11 and plain holes in the block 15 of the base member 1 and are screwed into bushes 14. The lock nuts 12 are tightened against the washers 13 to compress the flanges of the rubber bushes 10 against opposite sides of the brake levers 4 and 5 to give adequate support to the brake levers but, at the same time, allowing sufficient pivotal movement to release the brake shoes from the drum.
Patent GB-902882-A (GB)
Title: Improvements in or relating to drier rolls
IPC: D21G3/04
Filed: 1959-06-25
Abstract: 902,882. Doctors for drying cylinders. CARRIER-ROSS ENGINEERING CO. Ltd., and SANDS, R. G. June 9, 1960 [June 25, 1959], No. 21902/59. Class 34 (1). A doctor blade 8, Fig. 1, for a drier roll 1 is combined with a suction duct 2 parallel to the axis of the roll for the removal of debris as it is scraped from the roll, the combination being swingable from the roll by an off-centre mounting of the duct on spindles 6 carried by bearings on each side of the roll and which engage lugs 5. The duct has a linear series of necks 10, to each of which is threaded a throat 3 to each of which in turn is attached a nozzle 4 which may be removable by means of a clamping-ring 12. Clamped between a flange 11, Fig. 3, of the throat and the head 13 of the nozzle is a flange 15 of a ferrule 16 which may be removed and replaced by one having an inner wall differently tapered to vary the suction through the nozzle. In a modification the duct is of rectangular form and is mounted on a support of angle bar form for the doctor blade and in another modification the ducts are embodied in beams of I-section, the lower flange of the beam being utilized to support the blade. Specification 902,883 is referred to.
Patent GB-864054-A (GB)
Title: Improvements in or relating to copying processes
Inventor: ELLAM FREDERICK
IPC: B41M5/04
Filed: 1957-07-10
Abstract: 864,054. Copying documents. ELLAMS DUPLICATOR CO. Ltd. July 10, 1957, No. 21939/57. Addition to 844,364. Class 100(2) The method described in the parent Specification of producing copies is modified in that the coated copy sheet comprises a sheet of translucent paper and in that a direct image of the matter to be reproduced is formed in the composition containing the soluble dye. The mirror image produced on the copy sheets is viewed as a direct image through the translucent sheets.
Patent GB-869137-A (GB)
Title: Molecular weight control of olefin polymers
IPC: C08F10/00
Filed: 1957-07-11
Abstract: Ethylene is polymerized at a pressure below 100 kg. per sq. cm and at a temperature below 100 DEG C. in the presence of a liquid hydrocarbon reaction medium and a catalyst comprising an organometallic compound and a compound of a metal of Group IV(a), V(a) or VI(a) in which the mol. ratio of the catalyst components is at least 1,5 mols of the organometallic compound per mol. of sub-group (a) metal compound, the catalyst having been prepared by mixing its components together at room temperature for 1 to 5 hours or for 30 to 60 minutes at a temperature of from 30 DEG  to 70 DEG C., before being passed to the polymerization zone, and oxygen is introduced into the polymerization zone in an amount of not more than 90 litres per kilogram of catalyst.  The oxygen is preferably used in an amount greater than 20 litres per kilogram of catalyst.  Specified catalyst components are diethyl aluminium monochloride and titanium tetrachloride.  The polymerization is preferably carried out continuously and the oxygen introduced uniformly e.g. as air.  The molecular weight of the polymer may be varied from 50,000 to 750,000 according to the quantity of oxygen present.  Reference has been directed by the Comptroller to Specifications 824,198, 828,692 and 830,831.
Patent GB-149353-A (GB)
Title: Improvements in vices
IPC: B25B1/24
Filed: 1920-07-22
Abstract: 149,353. Friedmann, D. March 9, 1918, [Convention date]. Vices.-The movable jaw of a vice is actuated by two hollow internally-threaded spindles engaging screws in the fixed part of the vice and leaving between them in known manner a free central space, a divided slideway on the fixed part of the vice and below the spindles forming a guide for a dovetailed slide on the base of the movable jaw. The movable jaw 4, Figs. 3, 4 is actuated by hollow spindles 12, 13 mounted in the jaw 4 and engaging screws secured to the fixed jaw, and is provided with a dovetailed base 5 engaging a divided slideway 2, 3 extending forwardly from the fixed jaw. Spur-wheels 14, 15 on the ends of the spindles 12, 13 engage a central spur-wheel 7 of twice the size secured to a handle-operated shaft 6 rotatably mounted in the part 8 of the jaw 4 and in a plate 9 secured to the jaw. For gripping pipes, a jaw face 17, Fig. 5, having a V-notch 18 and provided with projections 19 may be fitted to either jaw or two separate parts 20, 21, Figs. 7 and 8, together forming a V-notch 22 and connected by a bar 24 passing beneath the jaw, may be used. In place of the spur-wheels, V-toothed wheels may be used; or, when the drive is from the side of the movable jaw, a worm and worm-wheels may be employed.
Patent GB-1455951-A (GB)
Title: Boronized drill bit cutters and methods
IPC: C23C8/00
Filed: 1974-05-17
Abstract: 1455951 Making drill bit cutters HUGHES TOOL CO 17 May 1974 [10 Aug 1973] 22080/74 Heading B3A [Also in Divisions C7 and E1] A method of manufacturing steel rotatable cutters for earth boring drill bits comprises forming a cutter with exterior earth disintegrating teeth carburizing at least selected areas of the exterior of the cutter to form a carburized case, boronizing the carburized case, and heat treating the carburized case. The heat treating comprises hardening and tempering the teeth. A drill bit 11, Fig. 1, has a threaded shank 13, nozzles 15 and head sections 17 each supporting a rotatable cutter 19. Alternatively, a conical cutter 19 may be mounted on the head section via a bearing pin 35, Fig. 3, and has teeth 25, 31, and a spear point 33. The carburizing may be by gas, pack or liquid and the carburization is for 19 hours at 927 C. The boronizing process may also be performed by pack, gas or liquid methods at temperatures of 700 to 900 C. for times of 15 minutes to 36 hours. The hardening comprises quenching in oil from at least 755 C. or quenching in carburizing or reducing atmospheres from a temperature of 780-843 C. Tempering is effected at 143-266 C. for about an hour. Decarburization or oxidation of the boronized case may be prevented by using a carburizing or reducing atmosphere, or by using a coating, e.g. copper plating. An alternative form of cutter, Fig. 4 (not shown), comprises rows of wear resistant inserts, preferably formed of cemented WC with a cobalt binder, having an interference fit in holes drilled in the cone 19.
Patent GB-241359-A (GB)
Title: Improvements in or relating to devices for holding umbrellas, sunshades, walking-sticks and the like
IPC: A47G25/12
Filed: 1924-09-19
Abstract: 241,359. Trenery, E. A. Sept. 19, 1924. Clips, sheet metal. -The upper end of an umbrella or the like is held by a clip and the ferrule or tip is supported in a socket member. The members are attached by screws at a suitable distance apart to a bicycle, perambulator, motor-car, &c. Fig. 1 shows one form of clip member and Fig. 7 another form, provided with clip portions 15, 16 of different sizes. Several of the clip or socket members may be mounted on a single supporting means to hold a number of umbrellas &c. Reference has been directed by the Comptroller to Specifications 22227/07, [Class 52 (i), Furniture, Fittings &c. for], and 187,662, [Class 52 (v), Window, stair, and like furniture &c.].
Patent GB-780809-A (GB)
Title: Improvements in cleaning mops
Inventor: BRADBURY THOMAS HENRY
IPC: A47L13/146
Filed: 1954-07-29
Abstract: 780,809. Wringer mops. PHILLIPS TELESCOPIC TAPS, Ltd. June 29, 1955 [July 29, 1954], No. 22135/54. Class 19. A wringer mop comprises a sponge 3 stuck on a pair of backing members 1, 2 which are held together by a band 4 of elastic rubber ; when the backing members are folded on one another to squeeze the sponge, Fig. 4, the band 4 stretches and so pulls the backing members together at the fold end. Brackets 5, 6, fixed by screws on the backing members 1, 2 have L- shaped lugs 7 formed on them which engage in notches 8 in the backing members and which contain recesses retaining the rubber band 4. A rib 9 on the bracket 6 engages a recess on the bracket 5 when in the mopping position. A handle 13 is fixed by bolt 15 in a socket recess 14 in the bracket 6, while a wire ringing handle 10 pivots in a recess 12 in the bracket 5. In lieu of the rubber band 4 a non-elastic flexible strip may be used, tensioned by springs anchored to the backing members, or a C-shaped blade spring may be used, being pivotally connected at each end to one of the backing members.
Patent GB-1261747-A (GB)
Title: Extraction of tea waste and utilisation in tea manufacture
Inventor: OLLIS WILLIAM DAVID
IPC: A23F3/14
Filed: 1969-04-30
Abstract: 1,261,747. Utilising tea waste. W. D. OLLIS, A. HOLMES and W. B. EYTON. 24 April, 1970 [30 April, 1969], No. 22139/69. Heading A2B.  Theaflavin, theaflavin gallate or a mixture containing these substances obtained as the residue after extracting tea waste with organic solvent containing water (e.g. aqueous ether) is used to improve black tea. The mixture may also contain caffeine. The residue in solution or sespension in water or acetone may be sprayed on to the black tea before it is dried or fired. The tea waste may be mixed with glass or kieselguhr to quicken the extraction process.
Patent GB-1057311-A (GB)
Title: Method of and apparatus for cooling strip
Inventor: O'BRIEN JEREMIAH WAGNER
IPC: C21D1/84
Filed: 1963-06-04
Abstract: Hot strip leaving the rolling mill is passed through a zone where it is subjected to coolant, the effective area acted on by the coolant being varied according to the speed, thickness etc. of the strip by changing the shape of the coolant field.  In the apparatus described the coolant field is produced by a series of nozzles producing flat parallel sprays, the nozzles being pivotally mounted so that the width of the spray field may be adjusted to the width of the strip Fig. 4 (not shown).
Patent GB-1428075-A (GB)
Title: Gate assembly particularly for a dry well
IPC: F16K15/18
Filed: 1974-05-17
Abstract: 1428075 Magnetic closures COMBUSTION ENG Inc 17 May 1974 [18 May 1973] 22142/74 Heading B8T [Also in Divisions F2 G6 and G1] A closed-ended tube 12 inserted into a vessel 10, e.g. a nuclear reactor, accommodates a probe 40 inserted therein to measure, e.g. temperature or neutron flux. A tube 34, through which the probe is inserted, is sealed by a ball 36 held in place by a magnet 38. When the probe is inserted the ball is displaced. On withdrawing the probe the wall seals against any leakage which may develop in the tube 12.
Patent GB-688059-A (GB)
Title: Improvements in or relating to apparatus for the storage of hot liquids under pressure
IPC: F24D11/00
Filed: 1950-09-08
Abstract: 688,059. Storing hot liquids. BASTIAN & ALLEN, Ltd., and WILLIAMS, S. A. Nov. 30, 1951 [Sept. 8, 1950] No. 22147/50. Class 64 (ii) A pressure-tight storage vessel for hot liquid is divided by a heat-conducting internal partition into a major compartment maintained full of liquid and a closed minor compartment connecting at its lower end by ports or pipes with the major compartment and having at its upper end a permanent space for air or gas which is compressed as the temperature rises to prevent the liquid boiling. Fig. 1 shows a storage vessel in the form of a lagged horizontal cylinder A with major compartment C<SP>1</SP> and minor compartment C<SP>2</SP> separated by a partition C. The main compartment is filled with water which enters and leaves by valuecontrolled pipes D<SP>2</SP>, D<SP>1</SP>. The compartments are in communication through a valve-controlled pipe E and air is under pressure in the space x of the minor compartment to prevent boiling. A water level gauge G is provided for the minor compartment. The minor compartment may comprise a separate casing entirely within the main casing. Fig. 4 shows a vertical main casing with a partition M<SP>2</SP> terminating short of the casing bottom K<SP>2</SP>, air being compressed in the space x and the pressure being controlled by a valve N<SP>1</SP>.
Patent GB-972704-A (GB)
Title: Improvements in or relating to the manufacture of sealed containers
Inventor: BOSWELL DAVID
IPC: B23K20/02
Filed: 1960-06-24
Abstract: 972,704. Welding by pressure. ASSOCIATED SEMICONDUCTOR MANUFACTURERS Ltd. May 9, 1961 [June 24, 1960], No. 22185/60. Heading B3R. [Also in Division H1] In making a sealed container a tubular header member 20 bent back upon itself with a glass or like seal 30 in the inner tubular part 22 thereof is formed with an outwardlydirected flange at the end of the outer tubular part 23 thereof, an outwardly-directed flange on a metal cover member 10 is pressure-welded to the flange on the header member by two tools 50, 60 having ring-like pressure faces 52, 62 which are at a small angle to one another so that the distance between them increases in an outward direction. The stamped copper header has a thinned portion 25 where the portion 22 is bent back on the portion 23 and the portion 22 is filled with a lead glass 30 supporting leads 31 of a transistor 40. With the transistor in position the flange on the copper cover 10, which cover may be grease filled, is placed on the flange on the header and these are welded between the faces 52, 62 of the tools. The header is held in position by a spring plunger 51 gripping the leads 31. Metal is caused by the inclined tool face to be extruded outwardly and hollows are formed inwardly of the tools. The extruded metal is cropped and rolled to the shape at 21.
Patent GB-248267-A (GB)
Title: Improvements in refrigerating apparatus
IPC: F25B17/06
Filed: 1925-09-05
Abstract: 248,267. Perkins, L. P., and Pimbley, J. P. Sept. 5, 1925. Refrigerating, absorption machines for; refrigerators, domestic.-A cabinet A containing a reversing absorption refrigerating apparatus and provided with compartments A<5>, A<6>, A<4> for holding respectively a generator-absorber a, cooling liquid and a condenser-evaporator b, is constructed to stand on bases A<1>, A<2>, A<3> in turn. The generator a is provided with an upper part a<1> having two depending tubes a<2> and is hermetically connected by a bent table a<3> to the condenser-evaporator b situated in the compartment A <4> in which the articles to be cooled are supported on a base d. The cabinet stands first nn the base A<1> while the generator a is heated by a blow-lamp l. It is then turned on to the base A<2>, thus causing the liquid to flow from the compartment A<6> through the tube e into the compartment A<5> and cool the generator a. The cabinet is finally turned on to the base A<3> to allow the liquid carried over into the evaporator b to flow back into the generator a through the tube c.
Patent GB-740545-A (GB)
Title: Improvements in or relating to stapling machines
Inventor: MURRAY HARRY DOUGLAS
IPC: B21D53/52
Filed: 1952-09-03
Abstract: 740,545. Strap fasteners. WARDALE, R. W. Aug. 13, 1953 [Sept. 3, 1952], No. 22204/52. Class 44. [Also in Group XXII] One part of an adjustable fastener, the other part comprising a lockable slider 34, is formed by folding a fabric strip 1 down the middle, stitching it at 3 to form a bead 4 and clinching a series of staples 13 on to the bead. Specification 677,118 is referred to.